Connecting Multiple J-Links / J-Traces To Your Pc; How Does It Work - Segger J-Link User Manual

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5.7

Connecting multiple J-Links / J-Traces to your PC

In general, it is possible to have an unlimited number of J-Links / J-Traces connected to the
same PC. Current J-Link models are already factory-configured to be used in a multi-J-Link
environment, older J-Links can be re-configured to use them in a multi-J-link environment.
5.7.1

How does it work?

USB devices are identified by the OS by their product ID, vendor id and serial number.
The serial number reported by current J-Links is a unique number which allows to have
an almost unlimited number of J-Links connected to the same host at the same time. In
order to connect to the correct J-Link, the user has to make sure that the correct J-Link is
selected (by SN or IP). In cases where no specific J-Link is selected, following pop up will
shop and allow the user to select the proper J-Link:
The sketch below shows a host, running two application programs. Each application com-
municates with one CPU core via a separate J-Link.
J-Link / J-Trace (UM08001)
CHAPTER 5 Connecting multiple J-Links / J-Traces to your PC
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